Mechanical property of a three-dimensional freely rotating chain -- A Monte Carlo approach
學年 109
學期 2
出版（發表）日期 2021-03-03
作品名稱 Mechanical property of a three-dimensional freely rotating chain -- A Monte Carlo approach
作品名稱（其他語言）
著者 Zicong Zhou (周子聰)
單位
出版者
著錄名稱、卷期、頁數 Modern Physics Letters B 35(14), 2150228
摘要 Free rotating chain (FRC) is a well-known model of polymer but the knowledge to its mechanical property is yet incomplete. This work uses Monte Carlo simulation to evaluate the relation between force and extension, the specific heat, the stretching strength and the fourth-order cumulants of the order parameter of a three-dimensional (3D) FRC. We simplify some expressions to calculate the thermodynamical quantities. Our results reveal that at low force, the behavior of the mechanical property of the model is the same as that of a free jointed chain (FJC) in both two-dimensional (2D) and 3D cases. But beginning from a moderate force, the two models have different mechanical properties. Moreover, we find that a 3D FRC has essential different mechanical property from its 2D counterpart, because the extension of a stretched 2D FRC can subject to a first order transition when the bond angle is large enough, but there is no such a transition for a 3D chain despite its stretching strength exhibits a peaks at large bond angle. Our findings reveal that the space constraint on a stretched polymer favors a sharp change in its size.
關鍵字 Polymer;mechanical property;Monte Carlo simulation
語言 en_US
ISSN
期刊性質 國外
收錄於 SCI
產學合作
通訊作者 Zicong Zhou (周子聰)
審稿制度 否
國別 SGP
公開徵稿
出版型式 ,電子版,紙本
相關連結

機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/120128 )